Rock Quarry Group Campground is a dispersed camping area located just west of Highway 90 on the western shore of Amistad Reservoir, available by reservation only for groups of 15 or more at $2 per person per night.

The site features basic amenities including picnic tables, grills, and shade ramadas, with vault toilets available and a nearby boat ramp for water access.

This group-only facility is ideal for organized camping trips and gatherings near the reservoir's recreational waters.